78408085

素因数分解:

$5^1\times 7^3\times {\mathrm{131}}^1\times {\mathrm{349}}^1$

素因数の和:506

約数の個数: 32

約数和(自身を含む): 110880000

約数和(自身を除く): 32471915

約数列:

[1, 5, 7, 35, 49, 131, 245, 343, 349, 655, 917, 1715, 1745, 2443, 4585, 6419, 12215, 17101, 32095, 44933, 45719, 85505, 119707, 224665, 228595, 320033, 598535, 1600165, 2240231, 11201155, 15681617, 78408085]

約数ペア:

[(1, 78408085), (5, 15681617), (7, 11201155), (35, 2240231), (49, 1600165), (131, 598535), (245, 320033), (343, 228595), (349, 224665), (655, 119707), (917, 85505), (1715, 45719), (1745, 44933), (2443, 32095), (4585, 17101), (6419, 12215)]